A bunch of years ago Kamil Breński, Krzysztof Pranczk and Mateusz Fruba reported some scary results, about 70% of the applications assessed during their research were **unlocked without even requiring a valid fingerprint**.
Ref: [https://labs.withsecure.com/publications/how-secure-is-your-android-keystore-authentication](https://labs.withsecure.com/publications/how-secure-is-your-android-keystore-authentication).
You can easily use 🕹 [apk.sh](https://github.com/ax/apk.sh) and the updated script from [https://github.com/ax/android-fingerprint-bypass](https://github.com/ax/android-fingerprint-bypass) to test the fingerprint authentication of any Android app (on non-rooted devices).
How about sharing results?